Photostable filtering cosmetic composition

In a photostable filtering cosmetic emulsion composition for protecting the skin from UV radiation of wavelengths between 280 and 380 nm, said aqueous phase consisting essentially of, as a wide absorption band photostable filter, benzene-1,4-[di-(3-methylidene-10-camphosulphonic)] acid, neutralized by an alkali hydroxide, ammonia or an alkanolamine and present, before neutralization, in an amount ranging from 0.1 to 10 percent by weight based on the total weight of said composition, wherein the improvement comprises increasing the protection of the skin against UV rays of wavelengths between 280 and 380 nm comprising adding to the oily phase of said composition, in an effective amount ranging from 0.1 to 15 percent by weight based on the total weight of said composition, a photostable system which filters UV-A rays, said photostable system consisting essentially of an effective amount of at least one of

• (i) N-(2-ethylhexyl)-3-[(3'-methoxy-4'-n-butoxy)-benzylidene]-10-camphosulphon amide,
• (ii) 4-(1,1-dimethylethyl)-4'-methoxydibenzoylmethane and
• (iii) 4-isopropyldibenzoylmethane, said (ii) and (iii) compounds being photochemically stabilized by at least one fat-soluble filter of .mu..sub.max less than 330 nm selected from the group consisting of
• (iv) benzylidene camphor,
• (v) p-methylbenzylidene camphor,
• (vi) N-(2-ethylhexyl-4-(3'-methylidene camphor) benzene sulphonamide and
• (vii) 3-methoxy-4-n-butoxybenzylidene camphor the weight ratio of the at least one of said compounds (iv), (v), (vi), and (vii), to said compound (ii) or compound (iii) being at least 1.